Question is attached as image, please help :>

Proved

Explanation:

Given

Required

Find out why they represent the same

To do this, we simplify either   or

In this question, I will simplify  

Apply de morgan's law

Apply distribution property

To simplify, we apply the following rules:

--- Inverse law

--- Inverse law

So, the expression becomes

Rewrite as:

From the given parameters:

This implies that:

  when simplified is X or

yes we can change both the color of the value of a cell as well as background color of a cell at the same time .

as we know that excel sheet consists of columns and rows.

and intersection of column and row is called cell.

we can change color of the cell and background of the cell at the same time.

hence the statement that

can a person change color of the cell and background of the cell at the same time is true.